WET SEASON
Sump Pump Service in Salem, OR
Salem's wet season runs roughly eight months a year, and a working sump pump is the difference between a dry crawl space and a recurring problem in low lying parts of the city.
What's actually going on
The Willamette Valley's rainy season, generally October through May, sends a steady volume of groundwater toward the water table under any property, and homes near Salem's tributary creeks, according to the League of Women Voters of Marion and Polk Counties' local water survey, Mill Creek, Pringle Creek, Shelton Ditch, Clark Creek, Battle Creek, and Croisan Creek on the east side, Glen Creek and Brush Creek in West Salem, tend to sit closer to a seasonally elevated water table than properties farther from any of them. A sump pump exists to intercept that groundwater before it accumulates under a crawl space or in a basement, pumping it out to a safe discharge point before it becomes standing water.
A sump pump that runs constantly during the wet season, rather than cycling on periodically, is worth a closer look rather than being taken as simply doing its job well. Constant running can mean the pump is undersized for the actual water volume it's handling, or that a check valve has failed and is letting already pumped water flow back down into the pit, forcing the pump to move the same water repeatedly.
A pump that doesn't run at all during a heavy rain event, when it clearly should be needed, is more urgent than it might seem, since it typically means either a failed float switch that isn't triggering the pump, or a pump that has simply burned out, and either failure leaves a crawl space with zero protection during exactly the conditions it was installed for.
Battery backup is worth serious consideration on any Salem sump pump installation, since power outages and heavy rain frequently arrive together during Willamette Valley storms, the February 2021 ice storm being the clearest recent example, and a primary pump that loses power during the exact event it exists to handle provides no protection at all without a backup system to take over.
New installations are sized based on the pit's expected water volume during the worst realistic wet season conditions, not average conditions, since an undersized pump that keeps up most of the time will still fail during the heaviest rain events, which is precisely when failure causes the most damage. Discharge routing also matters: water needs to be directed well clear of the foundation, not simply out a few feet from the house where it can seep right back toward the crawl space it was pumped from.
| Symptom | Likely cause |
|---|---|
| Runs constantly | Undersized pump, or a failed check valve |
| Doesn't run during heavy rain | Failed float switch or burned out pump |
| Cycles normally, water still accumulates | Undersized for actual volume, or poor discharge routing |
| Works, but no power backup | Vulnerable during storm related outages |
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QUESTIONS
A short list of real questions
Do I actually need a sump pump in Salem?
It depends on the property. Homes with crawl spaces near Mill Creek, Pringle Creek, or Salem's other tributary creeks, or any property that has seen standing water or persistent crawl space dampness during the wet season, are strong candidates. Higher, well drained lots may never need one.
Why does my sump pump keep running even when it doesn't seem like there's much water?
Constant cycling usually means either the pump is undersized for the volume it's actually handling, or a check valve has failed and is letting pumped water flow back down into the pit, so the pump ends up moving the same water over and over.
Is a battery backup really necessary?
Given how often heavy rain and power outages happen together during Willamette Valley storms, yes, it's a reasonable investment. A pump that loses power during the storm it was installed to handle provides zero protection without a backup source.
Where should sump pump discharge water actually go?
Well clear of the foundation, routed so it can't seep back toward the crawl space or basement it was just pumped from. Discharge routing that dumps water a few feet from the house defeats a meaningful part of the pump's purpose.
Not sure what to do next? Call (971) 326-9890 and ask directly
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